Improvement in hay-spreaders



C. R. FRINK.

Hay Spreader.

Patented Oct. 23, 1866.

LUNITED STATES PATENT OFFICE.

(l. lt. FRINK, OF NORVVIUH, NEWT YORK.

IMPROVEMENT lN H'AY-SPREAZDERS.

Specification forming part of Letters Patent No. 59,001. dated October 23, 1866.

-To all whom it may concern:

Be it known that I, (1R. FRINK, of Norwich, in the county of Ghenango and State of New York, have invented additional Improvements in my Hay Spreading Machine for which Letters Patent were issued the 8th day of May, 1866; and I do hereby declare and make known that the following is a full, clear, and exact description of the construction and operation of the same, reference heilig had to the accompanyingdrawings, making a part of this specification, in which- Figure 1 is a perspective view of my hayspreading machine with my additional improvements connected therewith. Fig. 2 is a view in detail of bracket, a series of which support the shafting and frame-beam of the machine; Fig. 3, view in detail of an eccentric grooved wheel or disk, showing the fork-rods with spiral springs around them and the connection of the rods with the wheel by a box and plate 5 Fig. 4, vertical section of wheel or disk and of the plate fitting around in the groove of the wheel, as well as section of box in which the fork-rods operate.

Like letters in the different figures of the drawings indicate like parts.

My additional improvement or invention relates to the substitution of eccentric grooved wheels or disks on the extreme rear shaft instead of the cranks, as in the old machine,

the grooves of said wheels or disks being provided with plates fitting around therein and thereon, which plates, terminating in the form of boxes, by the addition of other plates thereto, by means of bolts and screw-mits, receive the fork-rods through apertures constructed in the same, the said fork-rods having spiral springs surrounding them, which springs extend from the coil of the forks to the under sides of the boxes, to which they are permanently attached, whereby, from the eccentric motion given to the wheels or disks from the revolution of the shaft when the machine is in operation, the fork-rods are caused to assume a vibra-tory and upward motion when passing over uneven ground, the springs, as is obvious, when compressed, returning the forkrods to their original position.

The eccentric wheels or disks are found to be less liable to get out of order, and will not bend or break, as is sometimes the case with the cranks and connecting-rods ofthe old machine. They Iare lighter and give the forks a more perfect action, particularly when the ground is broken or uneven.

My invention also relates to that part of the arms ofthe brackets which support the ex treme rear shafts.

Instead ot' constructing them whole or solid, as in the old machine, l construct the arlns independently of the brackets, and join them thereto by means of pivots.

The advantage ot the jointed arms is that, when the machine is passing over broken ground or descending steep hills oroverditches, where the weight of the machine is liable to rest on the forks, the arms, as thus jointed to the brackets by the pivots, are permitted to rise upward, and thus relieve the forks from any pressure that may be produced from the irregularities above mentioned.

To enable any one to understand my improvements more fully, l will proceed to describe and indicate the same by letters of reference, and such parts as are not new, but which necessarily serve to illustrate understandingly their connection with the improvements.

A is the eccentric wheel or disk, (see Fig. 3,) constructed with a groove around its rim. In other words, the wheel may be termed a double-an ged wheel.

Fitting around the wheel, between the ian ges, and flush with the edges thereof, is a plate, which plate is so constructed when passed around as to terminate in ashort straight bar like form a. (See Fig. 4.) Two semicircular grooves are made on the face side of this bar. The two rods B of the fork, having spiral springs C around them, are placed within these grooves. A cap-plate, b, having corresponding grooves, is then placed over the rods, thus forming perfect circular holes, which are of a suiiicicnt size to permit a free and easy movement to the rods therein. The cap-plate is fastened securely to the bar by screw-bolts and nuts c, the passing of the plates around in the grooves of the Wheels and the attachment of the cap-plates thereto constituting boxes for the fork-rods to operate in. The connection of the plates with the wheels or disks is such that ai free and easy movement is permit-ted to either in their operation.

A series of these eccentric wheels and their connections, as above described, are perni-.tnently attached to the extreme rear shaft at suitable points along the saine. (See Fig. l.) The fork-rods are then connected in a suitable manner to the lever-rods C', attached to the rear of the frame-beam D of the machine.

The arm E is constructed (see Fig. 2) and joined to the bracket F in a. proper manner by pivots d. A series ot' these brackets, with the improved arms connected therewith, are at tached to the frame-beam of the machine, (see Fig. 1,) and, as herein remarked, support the Shat'ting.

The ctect of the irregularities et' the ground upon the arms'through the forks, as mentioned, is represented in red lines in Fig. 2, bythe arm being,` thrown up.

Having thus fully described my invention, what I claim therein as new, and desire to secure by Letters Patent, is-

1. The grooved or double-anged eccentric wheel or disk A, combined with a movable plate, a., and cap-plate I1,t`or operating the forkrods B, in their connection with the spiral springs C, substantiallyin the manner and for the purpose as herein set forth.

2. The movable jointed arms E, in combination with the brackets F, for relieving the forks ot' any straining or undue pressure, substantiallpP in thc manner and for the purpose as herein described.

C. P. FRINK.

Witnesses I. Il. lluLLirs, O. M. SWANY. 

